body{
    background-color: #83adad;
}
h1{
text-align: center;
margin-top: 40px;
}
.add_form{
width: 50%;
height: 600px;
margin-left: 25%;
background-color: #008000;
text-align: center;
font-size: 22px;
border-radius: 30px;
}
.add_form form input{
width: 25%;
height: 30px;
text-align: center;
font-size: 18px;
border-radius: 5px;
}